JP2005156391A - Timepiece - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a timepiece, in which a dial can be exchanged according to preference, and in which the attachment/detachment of the dial can be conducted easily and quickly. <P>SOLUTION: In the timepiece, having a timepiece board 4 detachably mounted on the inner wall surface of an annular case 2 constituting the external form of the timepiece, the dial 6 detachably mounted on the front side thereof, and a drive part 10 for driving hands 8 and 9 positioned on the front side thereof, the dial 6 includes a through hole 12 for a rotating shaft 11 of the hands for positioning the hands on the front side. The inner wall surface of the case 2 is formed so that the inside diameter of the front side part 21 is smaller than that of the backside part 22, and lock parts (23 and 24) for locking the dial 6 and the timepiece board 4 in an overlaid state are provided at the backside part 22. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a timepiece device capable of exchanging a dial according to preference, for example.

  As this type of timepiece device, as shown in Patent Document 1 below, a storage space is provided inside the case, and an hour hand, a minute hand, and a second hand are pivoted at a substantially central portion of the storage space, and the storage is performed. In a watch that attaches a dial to the inner surface of the space and displays the time from the dial position and the running position of the hour, minute, and second hands, an opening is formed at an appropriate part of the periphery of the storage space of the case and stored. A fitting plate is protruded at a portion corresponding to the opening in the space, at least one dial is provided, and a notch for fitting with the fitting plate is provided on one side of each dial, and a character is provided. There is known a timepiece device in which a dial can be replaced by inserting a board into a storage space from an opening of a case and fitting the notch into a fitting plate.

Utility Model Registration No. 3065535

  In the timepiece device described above, in order to make the dial replaceable, a fitting plate is provided at a portion corresponding to an opening formed in the periphery of the storage space of the case, while the fitting plate is provided on the side of the dial. The notch to be fitted is recessed, and when the dial is mounted, the dial notch inserted into the storage space from the opening of the case and the fitting plate are fitted to each other. There are many additional parts required for replacement, and the structure is not simple, which leads to an increase in the price of the watch.

  It is an object of the present invention to provide a timepiece device in which a dial can be exchanged according to preference, and a dial can be attached and detached quickly and easily with a simple structure.

  The timepiece device of the present invention includes an annular case that forms the outer shape of the timepiece, a timepiece that is detachably installed on the inner wall surface of the case, and a dial that is detachably installed on the surface side of the timepiece And a driving device that is arranged on the back side of the timepiece and drives the timepiece located on the front side, and the dial has a rotation axis of the hand for positioning the timepiece on the front side. The inner wall surface of the case is formed such that the inner diameter on the front side is smaller than the inner diameter on the back side, and the dial is placed on the inner wall surface part on the back side A locking portion that locks in a state of being overlapped on the side is provided.

  In an embodiment of the present invention, the locking portion includes a flat portion formed at a boundary between a front side portion and a back side portion of the inner wall surface of the case, and the dial and the timepiece between the flat portions. Consists of protrusions that hold the board.

  In another embodiment, the case has an inner wall surface having a large inner diameter with the annular portion on the front side formed hollow and the back side opened, and the locking portion is a front surface of the inner wall surface of the case. It is comprised by the protrusion which hold | maintains the said dial and the timepiece board | substrate between the edge of a side part, and this edge.

  When assembling the timepiece device of the present invention or when installing a new dial, the dial is superposed on the surface of the timepiece. At that time, by passing the clock hands located on the surface of the clock face through the holes in the dial face, when the dial is stacked on the surface of the clock face, the rotation axis of the clock hands passes through the holes in the dial face and The needle appears on the surface side of the dial. When the dial and the watch face thus overlapped are inserted from the back side of the case, the dial and the watch face have a stepped portion formed between the front side portion and the back side portion having different inner diameters of the inner wall surface, It is stopped in a sandwiched state by a locking portion provided on the back side portion of the inner wall surface. That is, the dial and the clock face are mounted in the case by a single push (so-called one-touch) operation by a human hand.

  On the other hand, when replacing the dial built into the watch device, the dial and watch face are locked by the above-mentioned locking part by pushing the dial and watch face to the back side from the front side of the case. Since the dial and the clock face are pushed out to the back side of the case at the same time, the dial can be taken out by a one-touch operation.

  Thus, according to the present invention, the dial and the clock face can be attached or exchanged according to preference by a one-touch operation. Moreover, since the structure is realized only by the shape of the inner wall surface of the case and is much simpler than the existing one, it is very advantageous in terms of the structure and price of the timepiece device.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  As shown in FIG. 1, the timepiece device 1 according to the first embodiment includes an annular case 2, a disk-like timepiece 4 and a dial 6 that are detachably installed on the inner wall surface of the case, A known drive unit (movement) 10 for driving a clock hand (long hand 8 and short hand 9 in the case of illustration) disposed on the back side of the timepiece 4 and located on the front side thereof is provided.

  As is well known, the dial 6 displays numbers or characters for indicating time at the positions of the long hand 8 and the short hand 9 on the surface side. In the illustrated embodiment, the dial 6 is displayed at the center of the dial 6. A hole 12 through which the rotating shaft 11 of the clock hand passes is provided.

  The inner wall surface of the case 2 is formed such that the inner diameter of the front side portion 21 is smaller than the inner diameter of the rear side portion 22, and the dial 6 is overlapped on the front side of the timepiece 4 on the rear side portion 22. As a locking portion that locks in a state of being in contact, the flat portion 23 formed at the boundary between the front side portion 21 and the back side portion 22 of the inner wall surface, and the dial 6 and the clock face 4 between the flat portion 23 There are a plurality of protrusions 24 that are held between them. In the case shown in the drawing, the protrusions 24 have a shape that protrudes in an arc shape inside the rear side portion 22, and are provided at three equal intervals along the circumference (thus at a position of 120 degrees).

  When the timepiece device 1 configured as described above is assembled, or when a new dial 6 is attached, the dial 6 is first superimposed on the surface of the clock 4 as shown in FIG. At that time, the clock hands located on the surface side of the clock board 4 are made straight, that is, the long hands 8 and the short hands 9 are moved to the overlapping position and then passed through the hole 12 of the dial 6. As a result, when the dial 6 is overlapped on the surface of the clock face 4, the rotary shaft 11 of the clock hand passes through the hole 12 of the dial 6 and the clock hand appears on the surface side of the dial 6 (FIG. 4).

  The dial 6 and the clock board 4 thus overlapped are inserted from the back side of the case 2. That is, as shown in FIG. 3, when the back side of the case 2 is faced up, the dial 4 and the watch face 6 overlapped with the drive unit 10 on the back side of the watch face 6 facing up, The case 2 is inserted from the back side. At this time, as viewed from the front side of the case 2, it is positioned so that the indication of 12 o'clock of the numbers or characters on the surface of the dial 4 is always at the 12 o'clock position. A mark (mark) 25 may be attached to a predetermined position (for example, the position of the protrusion 24) and a predetermined position on the back surface of the timepiece 4 (for example, a display position indicating 12 o'clock of the dial 6). preferable.

  When the dial 6 and the watch panel 4 overlapped as described above are inserted from the back side of the case 2, the peripheral portion of the dial 6 positioned at the head in the insertion direction has a front side portion 21 with an inner diameter of the inner wall surface being different. And a flat portion 23 that forms a step portion formed at the boundary between the back surface portion 22 and the back surface portion 22. Therefore, by pushing the entire periphery so that the entire periphery of the dial 6 is in contact with the annular flat portion 23 in the case 2, the periphery of the dial 6 and the timepiece 4 are made flat in the case 2. 23 and the protrusion 24 provided on the back side portion 22 of the inner wall surface. In this way, the dial 6 and the clock panel 4 are mounted in the case 2 as shown in FIGS. 4 and 5 by one push (one-touch) operation by a human hand, and the clock device 1 is completed.

  On the other hand, when the dial 6 incorporated in the timepiece device 1 is replaced with another dial 7 as shown in FIG. 6, the dial 6 and the watch 4 from the front side of the case 2 shown in FIG. By pushing the back side, the locking by the flat part 23 and the protrusion 24 is released, and the dial 6 and the watch face 4 are pushed out to the back side of the case 2 at the same time. Done in operation. The previous dial 6 displays only the numbers and characters necessary to display the time, but the other dial 7 represents the kitten symbol 13 in addition to the time display numbers. Is. In this way, by preparing a plurality of dials with various patterns or decorations, it is possible to prepare a plurality of favorite dials with a single watch.

  Next, FIGS. 7 and 8 show the case 3 in particular in the timepiece device according to the second embodiment of the present invention. In the case 3 of this embodiment, the annular portion on the front side is formed hollow, the inside of the front side portion 31 of the inner wall surface is a hollow portion 35, the back side is opened, and the inner diameter is large. A wall surface portion 32 is formed. Then, as in the first embodiment, as an engaging portion for engaging the dial 6 with being overlapped on the surface side of the timepiece 4, an edge 33 of the front side portion 31 of the inner wall surface of the case 3, and The dial 6 is composed of a plurality of protrusions 34 that hold the dial 6 and the timepiece 4 that are overlapped with each other between the edge 33 as described above. The protrusion 34 is formed in a substantially triangular shape with one corner protruding inside the case 3. Also in the second embodiment, the dial 6 and the clock board 4 can be mounted in or removed from the case 2 by a one-touch operation.

  According to the second embodiment, the case 3 can be integrally formed of a material such as a synthetic resin, and the configuration is suitable for mass production of timepiece devices.

  While the illustrated embodiments have been described above, the present invention is not limited to these embodiments. For example, the shape of the case is not limited to a circle, and may be an arbitrary polygon as long as it is annular. Moreover, the protrusion which comprises a latching | locking part is not restricted to the shape shown in figure, The arbitrary shape which can stop the peripheral part of a dial face and a clock face in the level | step-difference part in a case may be sufficient.

1 is an exploded perspective view showing a configuration of a timepiece device according to a first embodiment of the present invention. The perspective view which shows the state which superimposes a dial face on the surface side of a timepiece board. The perspective view which shows the state which piles up a dial face on the surface of a timepiece board and inserts it in a case in 1st Embodiment. The perspective view which shows the external appearance after the assembly of 1st Embodiment. The longitudinal cross-sectional view along the VV line of FIG. The front view which shows the example of the exchangeable dial used for this invention. The perspective view which shows the case of the 2nd Embodiment of this invention. The longitudinal cross-sectional view of the timepiece apparatus using the case of FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Clock apparatus, 2, 3 ... Case, 4 ... Clock board, 6, 7 ... Dial, 8 ... Long hand, 9 ... Short hand, 10 ... Drive part, 11 ... Rotating shaft, 12 ... Hole, 13 ... Design, 21 , 31 ... front side part of the inner wall surface, 22, 32 ... rear side part of the inner wall surface, 23 ... flat part, 24, 34 ... projection, 25 ... mark, 33 ... edge, 35 ... hollow part.

Claims (3)

  An annular case (2, 3) constituting the outer shape of the watch, a watch panel (4) detachably installed on the inner wall surface of the case, and a dial detachably installed on the surface side of the watch panel (6, 7) and a driving device (10) for driving the clock hands (8, 9) located on the surface side of the dial, and the dial (6, 7) is arranged on the surface side of the dial (6, 7). There is a hole (12) through which the rotating shaft (11) of the hand passes to position the clock hands (8, 9), and the inner wall surface of the case (2, 3) is the front side portion (21, 31). An inner diameter is formed so as to be smaller than an inner diameter of the back side portion (22, 32), and the dial (6, 7) and the watch face (4) are overlapped on the back side portion (22, 32). A timepiece device provided with a locking portion that locks in a state of being caught.   The timepiece device according to claim 1, wherein the locking portion includes a flat portion (23) formed at a boundary between a front side portion (21) and a back side portion (22) of the inner wall surface of the case (2). And a projecting part (24) for holding the dial (6, 7) and the timepiece (4) between the flat part and the timepiece. 2. The timepiece device according to claim 1, wherein the case (3) is configured such that an annular portion on a front side thereof is formed hollow and a rear side thereof is opened to form an inner wall surface having a large inner diameter. An end edge (33) of the front side portion (31) of the inner wall surface of the case (3), and the dial (6, 7) and the watch face (4) are held between the end edge (33). A timepiece device comprising a protrusion (34).

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